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Time Dependent Hypersonic Viscous Interactions
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Book Synopsis Time-dependent Hypersonic Viscous Interactions by : Czeslaw M. Rodkiewicz
Download or read book Time-dependent Hypersonic Viscous Interactions written by Czeslaw M. Rodkiewicz and published by . This book was released on 1967 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: A flat plate in hypersonic flow at zero angle of attack is stepwise accelerated in the direction of the initial flow by a small amount. The relevant non-steady boundary layer equations with their space and time boundary conditions are transformed into a coupled set of partial differential equations. These equations, for the case of zero pressure gradient, are linearized and the numerical solutions obtained for both zero and non-zero heat transfer at the wall for 0
Book Synopsis Viscous Hypersonic Flow by : William H. Dorrance
Download or read book Viscous Hypersonic Flow written by William H. Dorrance and published by Courier Dover Publications. This book was released on 2017-05-22 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed for advanced undergraduate and graduate courses in modern boundary-layer theory, this frequently cited work offers a self-contained treatment of theories for treating laminar and turbulent boundary layers of reacting gas mixtures. 1962 edition.
Book Synopsis Time-dependent Hypersonic Viscous Interations by : Czeslaw M. Rodkiewicz
Download or read book Time-dependent Hypersonic Viscous Interations written by Czeslaw M. Rodkiewicz and published by . This book was released on 1967 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computation of Viscous Shock/shock Hypersonic Interactions with an Implicit Flux Split Scheme by : Datta V. Gaitonde
Download or read book Computation of Viscous Shock/shock Hypersonic Interactions with an Implicit Flux Split Scheme written by Datta V. Gaitonde and published by . This book was released on 1990 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction of an impinging shock with the bow-shock generated by a blunt geometry is examined numerically for hypersonic (Mach 8, perfect gas) flows with modified Steger-Warming flux-split scheme. The modifications are designed to reduce numerical dissipation in the boundary layer thus improving the resolution and accuracy of the resulting algorithm. The full 2-D Navier- Stokes equations are solved in finite-volume formulation with central differencing for viscous terms and residual driven line Gauss-Seidel relaxation for time advancement. Grid resolution studies are performed. For a Type IV interaction, comparison with surface pressure and heat-transfer rates display good overall agreement with experimental values. For a Type III+ interaction, a detailed comparison is made with experimental surface quantities and a computation with Van Leer's flux-splitting algorithm. The peak amplification of pressure is modestly overpredicted with the current algorithm. The computed peak heat transfer is comparable to that obtained in previous research with Van Leer's splitting, although anomalous behavior is observed in the vicinity of the stagnation point. This behavior may be eliminated with appropriate corrections.
Book Synopsis A Computer Study of Hypersonic Laminar Boundary-layer/shock-wave Interaction Using the Time-dependent Compressible Navier-Stokes Equations by : B. K. Hodge
Download or read book A Computer Study of Hypersonic Laminar Boundary-layer/shock-wave Interaction Using the Time-dependent Compressible Navier-Stokes Equations written by B. K. Hodge and published by . This book was released on 1976 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of an investigation of hypersonic laminar boundary-layer/shock-wave interactions using the method of MacCormack to solve the time-dependent compressible Navier-Stokes equations. Comparisons of the numerical solutions with experimental data were made to ascertain the validity of the numerical method and to identify regions of anomalous behavior. The algorithm gave good results when applied to hypersonic laminar interactions that caused either small or no separated regions and marginal performance when applied to hypersonic laminar interactions having large regions of separated flow. The extents of the separated regions in interactions having large regions of separated flow were underpredicted when compared with experimental data. The predicted wall heat-transfer rates exhibited the correct qualitative trend but not the experimentally measured quantitative values. Consideration of the effects of needed stabilizing terms as well as grid resolution suggests inadequate mesh spacing in the longitudinal direction as the cause of the aforementioned anomalies. If inadequate mesh spacing (and the corresponding lack of support for every term of the Navier-Stokes equations) is a prime cause of the cited discrepancies between the numerical results and the experimental data, then the needed reduction of several orders of magnitude in delta x, would increase CPU time and core storage requirements to untenable levels. (Author).
Book Synopsis Axisymmetric Hypersonic Flow with Strong Viscous Interaction by : John Webster Ellinwood
Download or read book Axisymmetric Hypersonic Flow with Strong Viscous Interaction written by John Webster Ellinwood and published by . This book was released on 1967 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stewartson's theory for axisymmetric hypersonic flow of a model gas with strong viscous interaction and strong shock wave is extended to power-law viscosity variation, nonunit Prandtl number, and body shapes other than power laws. For power-law bodies, the generalized theory is obtained in closed form without recourse to numerical integration. In addition, numerical computations are presented for axisymmetric flow over a three-quarter power-law body with strong shock wave and viscous interactions that range from weak to strong. (Author).
Book Synopsis Viscous Interactions at Hypersonic Speed by : Michael S. Holden
Download or read book Viscous Interactions at Hypersonic Speed written by Michael S. Holden and published by . This book was released on 1986 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been directed toward investigations of fundamental aerothermal phenomena in hypersonic flow, with particular emphasis on viscous/inviscid interaction phenomena. The experimental studies were conducted to examine the changes in the structure at the base of a hypersonic turbulent boundary layer as it is subjected to a strong self induced pressure gradient in regions of shock wave/boundary layer interaction. The initial phase of the theoretical program was directed toward summarizing existing techniques for obtaining Navier/Stokes solutions for laminar flow over flat plates in hypersonic flow. In the experimental program, surface and flow field measurements were made to examine the detailed flow mechanics associated with turbulent boundary layer separation over a large cone flare model at Mach 11, 13, and 16 for Reynold numbers up to 100 million. Solutions have been obtained to Navier-Stokes equations for the laminar flow over the leading edge of a sharp flat plate in Mach 16 flow for highly cooled wall conditions using a modified MacCormack/Shang fully explicit formulation. To obtain a stable converged solution it was necessary to reduce the grid size close to the leading edge to the order of the mean free path, and typically 20,000 time steps were required to achieve convergence. However, once obtained, the solution was a good agreement with experiment.
Book Synopsis Dynamic Viscous Interaction in Hypersonic Flow by : Kazimierz J. Orlick-Rückemann
Download or read book Dynamic Viscous Interaction in Hypersonic Flow written by Kazimierz J. Orlick-Rückemann and published by . This book was released on 1970 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OAR written by and published by . This book was released on 1967 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Viscous Interactions by : Tony C. Lin
Download or read book Hypersonic Viscous Interactions written by Tony C. Lin and published by . This book was released on 1970 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Asymptotic Theory of Supersonic Viscous Gas Flows by : Vladimir Neyland
Download or read book Asymptotic Theory of Supersonic Viscous Gas Flows written by Vladimir Neyland and published by Butterworth-Heinemann. This book was released on 2008-02-06 with total page 563 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book in English devoted to the latest developments in fluid mechanics and aerodynamics. Written by the leading authors in the field, based at the renowned Central Aerohydrodynamic Institute in Moscow, it deals with viscous gas flow problems that arise from supersonic flows. These complex problems are central to the work of researchers and engineers dealing with new aircraft and turbomachinery development (jet engines, compressors and other turbine equipment). The book presents the latest asymptotical models, simplified Navier-Stokes equations and viscous-inviscid interaction theroies and will be of critical interest to researchers, engineers, academics and advanced graduate students in the areas of fluid mechanics, compressible flows, aerodynamics and aircraft design, applied mathematics and computational fluid dynamics. The first book in English to cover the latest methodology for incopressible flow analysis of high speed aerodynamics, an essential topic for those working on new generation aircraft and turbomachinery Authors are internationally recognised as the leading figures in the field Includes a chapter introducing asymptotical methods to enable advanced level students to use the book
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Study of Unsteady Viscous Hypersonic Blunt Body Flows with an Impinging Shock by : Goetz H. Klopfer
Download or read book Numerical Study of Unsteady Viscous Hypersonic Blunt Body Flows with an Impinging Shock written by Goetz H. Klopfer and published by . This book was released on 1988 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Introduction to Hypersonic Aerodynamics by :
Download or read book An Introduction to Hypersonic Aerodynamics written by and published by . This book was released on 1989 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Viscous Interaction on a Slender Body of Revolution with Surface Mass Transfer by : Ting Yi Li
Download or read book Hypersonic Viscous Interaction on a Slender Body of Revolution with Surface Mass Transfer written by Ting Yi Li and published by . This book was released on 1967 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analytical formulation is presented of the problem of hypersonic viscous interaction on a very slender body of revolution with a thick boundary layer and mass transfer. Particular attention is directed to the establishment of the mathematical restrictions necessary to ensure the existence of similar solutions of the laminary boundary-layer equations for this class of problems. Yasuhara's analysis is extended to include surface mass transfer and binary mixture effects. It is shown that when the boundary-layer thickness is of the same order of magnitude as the characteristic body dimension, rigorous similarity is possible only for three-quarter-power-law bodies. This is in agreement with Yasuhara's earlier conclusions. Similar solutions to the boundary-layer growth equations exist when the transverse curvature expression is a function of the similarity variable. The criterion for the existence of similar solutions for the problem of hypersonic viscous interaction is that there must be a definite relationship between body surface shape and surface injection velocity. (Author).
Book Synopsis Hypersonic Viscous Interaction Theory for Slender Axisymmetric Bodies by : Harold Mirels
Download or read book Hypersonic Viscous Interaction Theory for Slender Axisymmetric Bodies written by Harold Mirels and published by . This book was released on 1967 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of viscous interaction are investigated for hypersonic flow over slender axisymmetric bodies. The entire range of interaction, from weak to strong, is considered for nose bluntness not greater than a 3/4 power law. Extensive numerical results are given for the self-similar flow over a 3/4 power law body. These results are correlated and used in a local similarity procedure for finding viscous interaction over arbitrary body shapes. Analytical expressions are derived for weak interaction on a cone and strong interaction on power law bodies. Following Dewey's approach, the local similarity procedure is simplified to a series of algebraic equations. These are solved for flow of air over a cone. Numerical results are presented for cone surface pressure, shear, heat transfer, drag and displacement thickness in all interaction regimes. The drag is in good average agreement with available experimental cone drag data. The analytical development is a unified treatment of viscous interaction effects on two-dimensional as well as axisymmetric bodies. Numerical results for wedges are included. (Author).
Book Synopsis Studies in Hypersonic Viscous Interactions by : A.V. Murthy
Download or read book Studies in Hypersonic Viscous Interactions written by A.V. Murthy and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
